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The Alpinestars SM3 Radium Helmet is engineered to meet the highest standards in off-road safety, comfort, and performance. Crafted with cutting-edge materials and innovative features, this helmet provides riders with reliable protection and an exceptional riding experience. Its sleek glossy finish in black, red fluo, and white enhances visibility and style on any trail. Designed for durability and optimal fit, the SM3 helmet ensures you stay comfortable and confident during intense off-road adventures. The helmet's thermo-injected polymer blend with variable thickness offers superior impact absorption while maintaining a lightweight profile, reducing rider fatigue over long rides. Engineered with the rider's safety as a priority, it incorporates advanced protective features, including a slip-plane layer that mimics the brain’s natural defense mechanism, and a low-friction coating on the EPS liner that minimizes rotational forces during oblique impacts. The helmet conforms to both DOT and ECE 2206 standards, making it suitable for use worldwide, and features a patented visor release system that reduces strain on the neck by releasing the visor with calibrated force during impact. Ventilation is optimized through 10 intake ports and 7 exhaust outlets, providing maximum airflow and heat transfer to keep the rider cool and comfortable even during the most demanding rides. Designed for ease of use, the SM3 Radium helmet offers a secure, breathable fit for extended off-road sessions, ensuring safety and comfort go hand in hand. Whether you're tackling rugged trails or exploring new terrains, this helmet provides the confidence and protection you need for every adventure.
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